Effects of chemical treatment of substrate on surface polymerization of conducting polymers
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Conducting polymers are an interesting class of materials for applications in conductive coating and tansparent electrodes. As the properties of conducting polymers depend on the conditions of polymerization and processing and the composition of materials, it is important to understand their structure-processing-property relationships in detail. In this work, we studied the chemical effects of a substrate on a surface polymerization of conducting polymers. We first applied various silane derivatives onto a glass substrate. Through this approach, the acidic and basic surface was formed. Polymerization conditions such as temperature, concentration and time were controlled. We then oxidatively polymerized aniline or thiopehene derivatives on the chemically modified surface of the substrate. We then investigated the properties of the thin conducting polymer films by using UV/vis and IR spectroscopic methods and resistance measurement.